Hi,
how to do a phased construction?
1. geostatic state;
2. superficial foundation;
3. project load.
Thank you. Sorry I'm new

your question is very general. what to do mean by phased construction? please be specific.

1. two geotechnical horizons (1. sand and 2. gravel);
2. Vertical and horizontal tension calculation;
3. Insert foundation 1,50x1,50 m superficial;
4. I apply to the plinth project forces;
5. Calculation of vertical and horizontal tensions after foundation-

yes all of these are doable by ADONIS.

excuse me how to proceed correctly?
thank you, sorry for the simplicity of the questions!

there are several examples in the forum (i.e.  Useful Scripts). also I provided several clips in documentation page to follow. a simple manual has been provided both in the web page and inside ADONIS program itself. give them a try and solve some simple problems. you can share your problems and experiences with other members in the forum and seek for help if needed.

how can I determine the limit load of a superficial foundation?

I don't understand your question? please clarify.

it is possible to grow a load until the ground breaks with a Mohr-Coulomb criterion?

yes you can. you need to simply put apply load inside the for loop and keep increasing it until reaches the limit. at any stages of the model you will be able to modify the existing load/stress and solve your model again.